SOLUTION: When turned on, a faucet can fill a tub in 3 hours. The tub has 2 drains — the first can empty the tub in 8 hours and the second can empty the tub in 7 hours. If the faucet is turn

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Question 910677: When turned on, a faucet can fill a tub in 3 hours. The tub has 2 drains — the first can empty the tub in 8 hours and the second can empty the tub in 7 hours. If the faucet is turned on while both drains are open, how long will it take to fill the tub?
Answer by josgarithmetic(39618) About Me  (Show Source):